Garlic bolting agent is a compound of various plant growth regulators, which can not only promote the early growth of garlic bolting, but also promote the growth of garlic bolting, make garlic bolting on the market as soon as possible, and improve the yield and quality of garlic. Experiments for many years show that spraying 24- epibrassinolide+gibberellic acid+potassium dihydrogen phosphate 2-3 times at the bolting stage of garlic can significantly promote the bolting growth of garlic and increase the yield. Experiments show that garlic bolting can be put on the market 7 days in advance, the bolting length can be increased by 30-50%, and the yield can be increased by 600 kg.